Best Answer

This happened to me today on a major highway. The Ford garage told me it is a transmission problem. Check transmission problem solutions here in this blog. Solenoids, etc. It means your transmission is slipping, that happens in a lot of Mercury mystiques. not all true there is a throttle position sensor or T.P.S. on your throttlebody try that its way cheaper than transmission

User Avatar

Wiki User

โˆ™ 2009-07-17 01:21:02
This answer is:
User Avatar
Study guides

Add your answer:

Earn +20 pts
Q: Why would the RPM go up and down in a 97 Mercury Mystique?
Write your answer...
Still have questions?
magnify glass
Related questions

Why won't my 98 mercury mystique rev over 4000 rpm's?

Rev limiter

When max RPM for a new mercury 200 hp optimax outboard?

the rpm is 5700

What is the recommended RPM range for a 2 stroke 35 hp mercury?

5000-6000 rpm

What is the maximum RPM for a mercury outboard motor 200hp efi 2.5l xri?

5000-5500 rpm

What is the RPM range at 70 MPH on a 2003 Mercury Sable?

I have a 2001 mercury sable LS premium DOHC 24V engine and usually around 70 I'm at 2500-3000 RPM's

Why will your 2001 mercury 4 stroke outboard not operate at more than 2400 RPM?

My 115 EFI mercury outboard would only generate 4200 RPM. The power gradually reduced and finally levelled off at 2400 RPM. I have had other problems in the past relating to power settings. Fuel injectors and impellor have been eliminated as potential causes.

1990 corvette has a RPM problem it is up and down and land on 8000?

what is wrong with my rpm it goes up and down

Why would a 1992 Accord EX rev up and down from 1500-2500 RPM in park and when in drive stay around 1500 RPM and idle at no less than 1000 RPM?

possibly bad distributer

How do you adjust RPM for the 1996 mercury villager?

Idle speed is set by the PCM and IS NOT ADJUSTABLE.

What is the RPM needed to downshift a dump-truck?

It is not so much the proper RPM but the difference in RPM between gears. If you up shift at 1800 and going in next gear you are at 1200, then you have a 600 RPM split between gears. So downshifting you would be around 1200 and would while floating gears or double clutching bring the RPM's up to 1800-1900. Many trucks have RPM range stckers on the visors my old Mack was 1050-1750, that's a 700 RPM range, I would down shift when I hit 1050-1150, at 1150 I would have to bring the RPM's up to about 1850 to get it to go into gear.

Why would the battery light flicker when accelerating to 3000 rpm?

Sounds like the brushes are worn down in the alternator.

What would make my car RPM's drop down to 500 and hardly will idle?

mass air flow sensor

People also asked